Frame structure

Abstract

A frame structure having at least one shelf board and some supporting rods; each shelf board has connectors at the corners, and each supporting rod has a connecting sleeve corresponding to a respective connector of a respective shelf board. Each connecting sleeve sleeves a corresponding supporting rod through a sleeve hole; a locking member is provided through an outer wall of each connecting sleeve. Each connector has a connecting clamping plate provided with a slot that opens towards a bottom end; the locking member transversely penetrates through the slot, and the slot allows the connecting clamping plate to be vertically slidable with respect to the locking member; and the connecting clamping plate is prevented from horizontal displacement by an anti-detachment part of the locking member. Accordingly, the frame structure is easy to assemble and disassemble.

What is claimed is: 
     
         1 . A frame structure, comprising:
 at least one shelf board and a plurality of support rods; the plurality of support rods support said at least one shelf board;   each of said at least one shelf board is provided with a plurality of connectors corresponding to the plurality of support rods respectively, and the plurality of support rods are each provided with a connecting sleeve for each of said at least one shelf board, and the connecting sleeve is detachably connected with a respective one of the plurality of connectors;   the connecting sleeve is provided with a sleeve hole that penetrates a top end and a bottom end of the connecting sleeve; the sleeve hole is a tapered hole that gradually widens from the top end towards the bottom end of the connecting sleeve; the connecting sleeve is fitted onto a respective one of the plurality of support rods through the sleeve hole; at least one locking member is provided through an outer wall of the connecting sleeve, and an outer end, distal from the connecting sleeve, of each of said at least one locking member is provided with an anti-detachment part;   one side of each of the plurality of connectors is connected to a respective one of said at least one shelf board, another side of each of the plurality of connectors is provided with a connecting clamping plate; the connecting clamping plate is provided with a slot that opens towards a bottom end of the connecting clamping plate; said at least one locking member transversely penetrates through the slot, and the slot allows the connecting clamping plate to be vertically slidable with respect to said at least one locking member; and the connecting clamping plate is prevented from horizontal displacement by the anti-detachment part of each of said at least one locking member.   
     
     
         2 . The frame structure of  claim 1 , wherein a plurality of annular slots are formed around an outer wall of each of the support rods and spaced apart vertically from one another along an axial direction of each of the support rods; each of the support rods is further provided with a fitting assembly corresponding to the connecting sleeve; the fitting assembly comprises two semi-sleeve bodies that are removably engaged with each other; an inner wall of the fitting assembly removably fits against the outer wall of a respective support rod, and the inner wall of the fitting assembly is also provided with an annular rib protruded from the inner wall of the fitting assembly; the annular rib is selectively engageable with one of the plurality of annular slots; an outer wall of the fitting assembly is a tapered wall that fits with the sleeve hole of the connecting sleeve. 
     
     
         3 . The frame structure of  claim 2 , wherein said plurality of support rods comprise four support rods; correspondingly, there are four connecting sleeves and four fitting assemblies for each of said at least one shelf board. 
     
     
         4 . The frame structure of  claim 1 , wherein a horizontal cross-section of the sleeve hole is circular; the outer wall of the connecting sleeve has a cylindrical profile. 
     
     
         5 . The frame structure of  claim 1 , wherein said at least one locking member is detachably connected through the outer wall of the connecting sleeve, or integrally welded to the connecting sleeve; the plurality of connectors are detachably connected or integrally welded to each of said at least one shelf board. 
     
     
         6 . The frame structure of  claim 5 , wherein each of said at least one locking member is a connecting screw, which is detachably screwed into a corresponding sleeve wall hole formed on the outer wall of the connecting sleeve; a screw head of the connecting screw serves as said anti-detachment part. 
     
     
         7 . The frame structure of  claim 6 , wherein four sleeve wall holes are circumferentially and evenly formed around the outer wall of the connecting sleeve. 
     
     
         8 . The frame structure of  claim 5 , wherein said one side of each of the plurality of connectors connected to the respective one of said at least one shelf board is defined as a connecting part; the connecting part is provided with connecting through-holes; the connecting part is detachably connected to the respective one of said at least one shelf board by fixing screws; the connecting clamping plate is provided with a concaved surface adapted to fit the outer wall of the connecting sleeve; the connecting part is spaced apart horizontally from the connecting clamping plate; an accommodating space is provided on one surface of the connecting clamping plate facing away from the connecting sleeve. 
     
     
         9 . The frame structure of  claim 5 , wherein a notch is formed at each of four corners of each of said at least one shelf board such that a respective one of the plurality of connectors is connected to the notch. 
     
     
         10 . The frame structure of  claim 1 , wherein the connecting sleeve has an assembled structure; the connecting sleeve is divided into a first arc piece and a second arc piece along a radial direction thereof; the first arc piece and the second arc piece are detachably connected with each other to form the sleeve hole. 
     
     
         11 . The frame structure of  claim 10 , wherein each of two connecting surfaces at two ends of the first arc piece connecting to the second arc piece is opened with at least one connecting lock hole that penetrates through an outer circumferential surface of the first arc piece; each of two connecting surfaces at two ends of the second arc piece connecting to the first arc piece is opened with at least one connecting lock hole that penetrates through an outer circumferential surface of the second arc piece; when the first arc piece and the second arc piece are connected, said at least one connecting lock hole of each of two connecting surfaces at two ends of the first arc piece aligns with corresponding said at least one connecting lock hole of a corresponding connecting surface of a corresponding end of the second arc piece; a locking screw is removably inserted into each pair of aligned connecting lock holes to securely lock the first arc piece and the second arc piece. 
     
     
         12 . The frame structure of  claim 10 , wherein one of two connecting end surfaces of two ends of the first arc piece connecting to the second arc piece is provided with at least one lock block protruding along a circumferential direction of the connecting sleeve; another one of the two connecting end surfaces of two ends of the first arc piece connecting to the second arc piece is provided with at least one lock slot recessed along the circumferential direction of the connecting sleeve; one of two connecting end surfaces of two ends of the second arc piece connecting to the first arc piece is provided with at least one lock block protruding along the circumferential direction of the connecting sleeve, and wherein said one of two connecting end surfaces of two ends of the second arc piece corresponds and faces towards said another one of the two connecting end surfaces of two ends of the first arc piece; another one of the two connecting end surfaces of two ends of the second arc piece connecting to the first arc piece is provided with at least one lock slot recessed along the circumferential direction of the connecting sleeve, and wherein said another one of the two connecting end surfaces of two ends of the second arc piece corresponds and faces towards said one of the two connecting end surfaces of two ends of the first arc piece; at least one axial end surface of each of the first arc piece and the second arc piece is provided with a locking through-hole that axially communicates with a corresponding one of said at least one lock slot formed on a respective arc piece; when the first arc piece and the second arc piece are connected, said at least one lock block of the first arc piece is inserted correspondingly into said at least one lock slot of the second arc piece, and the said at least one lock block of the second arc piece is inserted correspondingly into said at least one lock slot of the first arc piece; each of said at least one lock block of each of the first arc piece and the second arc piece is provided with a locking bottom hole corresponding to a respective locking through-hole on a respective arc piece; locking screws are removably provided wherein each of the locking screws passes through a corresponding locking through-hole and inserts into a corresponding locking bottom hole. 
     
     
         13 . The frame structure of  claim 10 , wherein at least one end surface of the connecting sleeve is provided with two semi-circular lock pieces to connect the first arc piece and the second arc piece; each of the two semi-circular lock pieces is formed by two connecting sections extending along a circumferential direction of the connecting sleeve; one of the connecting sections is in contact with an end surface of the first arc piece, and another one of the connecting sections is in contact with an end surface of the second arc piece; the two connecting sections are provided with two lock piece through-holes respectively; the end surface of the first arc piece and the end surface of the second arc piece are provided with arc piece lock holes respectively that correspond to the two lock piece through-holes respectively; fasteners are provided to pass through the two lock piece through-holes and being locked into the arc piece lock holes respectively, thus achieving locking each of the two semi-circular lock pieces with the first arc piece and the second arc piece. 
     
     
         14 . The frame structure of  claim 1 , wherein an upper side of each of the plurality of connectors connected to the respective one the said at least one shelf board is defined as a connecting part; the connecting part is located on top of the connecting clamping plate, and the connecting clamping plate is located below the connecting part.